Loose-leaf binder



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Patented Oct. 27, 1925.

UNITED STATES PATENT foFFicE.

`IHIillI'RYy STANLEY HORN, DE `fElifiSiliORANGE,NEM? JERSEY.

Loosnfpner nIVNDER.

y Application` `filed` April 17, 1922. Serial No., 553,820.

The presentinvention relates to looseleaf` i binders orthe like, yandaime to provide certain improvements therein.

An .object-.of the presenthiiivention 1s to which will be adapted to"holdloose leaves `isecurelyin place and which may be adjustedtoaccommodate a greater or less number ofi leaves. `It is also'an'object of the present invention that the` device 'be simple in con*lstruction, effective in opera-tiem, and one ohthat may befnianufacturedand sold at a low price.

To this end the invention comprises a loose leaf device having a binderconsisting of a pair of adjustable telescopic members, one of which istubular and provided with lateralopenings in its side, and the `other ofwhich is formed with a pair 'of spring ,lingers Iformed at their freeends with a 'lateral projection adaptedvto enter anopen ing in thetubular member. The invention also `contemplates the combination of suchbinder post with a substantially semi-circular element which may serveto hold the n leaves and which is preferablyA formed to have a quickdetachable connection with 1said binder post. Certain other features ofimprovement are 'also contemplated, and

will be hereinafter more fully set forth.

Referring to -the drawings, wherein I Ahave 'shown 'the preferredembodiments of my invention,-

. Figure l is a transverse section of a loose leaf device'showing myinvention embodied therein.

` Fig. 2 is a similar view showing the' telescopic binderelements incontracted position.

Fig. 3Vis an elevation of the telescopic `"binder elements in separatedposition.

' Fig. i is a transversesection taken on the line H of the tubularelement shown in Fig. 3.

Fig. 5 is a transverse section taken on the line 5--5 of Fig. 2.

sitifon vofthe spring billar, with a plui' Figfo is a siinilar'section`showing the pofingers in=disengagi11g position.

Fig. 'i'. is a transverse sectionshowing the enfiploymentl of a separateextension member."

S is a side elevation of the extension member shown in Figa 7. V

Referring first to Figs. l to 6 of the drawings, let A and A yindicatethe covers and B the back of a loose leaf binder. The back and `coversare preferably lieXibly connected together; as Ishown at'C. A

For the purpose of holdingthe leaves between. the binder covers, lemploy a substantially semicircular or U-shaped `elevment D. lt ispreferable that this element be resilient and provided with an initialoutward tension tending to move its ends apart for a purpose to behereinafter set forth. This element is preferably carried y a binderpost formed of a pair of telescopic sections .E and F, and acts againstsaid binder post adjacent its ends to urge the telescopic membersthereof apart.

lhile any suitable connection betweenthe binder `post members and theelementl D may be resorted to, l prefer to employ the connection hereindisclosed, `which consists in one end of the. element l) being loopedvaround the post F, `as shown atri,y andthe other end being formed withnotches d adapted to engage and hold against the lower-most edge of oneofthe grooves e. rihe element D being resilient and provided 'with aninitial ontwardtension, it will. be appreciated that by the means just`described a quickly attachable and` detachable connection between thebinder post and the element D is provided. To accommodate liiferentthicknesses of leaves between the covers, members lil and F are madelongitudinally adjustable. This is accomplished by forming the member E,which is tuality of openings e in its sido, and forming the member Fwith a pair of spring arms j, f', the free ends of said arms `being eachprovided with a lateral catch projection f2 adapted toengage intheopenings e of the tubular memberv E, owing to thc initial outwardtension pos sessed by the spring Lngers f. The members E and F may becarried bythe back member B iny any suitable manner, but l have foundthat by permanently seably beveled, as indicated at f3, and to pro-yvide for the facile disengagement ofk said catch projections from thevopening e, the sides of said projections are beveled.y as indicated atf4, as best shown in Fig. 6. It

will thus be seen that When the projections lare in locking engagementwith the open-l ings in the tubular member, that by turning the member Fthrough an angle of 90, a

. complete disengagement is accomplished.

Such turning movement may be accomplished by rotating the head f5 eitherwith the lingers or by applying any suitable instrument to the kerf f6in the head f5.

In Fig. 7 I have shown the employment of an additional extension memberI cooperating With the telescopic members rl and F. By the employment ofsuch extension member, the binder device may be made to accommodate anamount of leaves of greater thickness than the maximum degree ofextension when only the elements E and F are employed. This extensionmember I in construction embodies the feae tures of both the telescopicmembers E and F, and is adapted to simultaneously telescope With both ofsaid members. In construction it consists of a tubular part J havingopenings y' in its side, and a pair ofk spring lingers K each formed atits free' end with a lateral projection 7c. The parts J and K aresubstantially the same in construct-ion as the parts E and Frespectively, and in use theY part J is adapted to receive the binderpost member F, While the part K is adapted to enter and be received bythe hinder member E. D may be used in combination With this binder post.in the samey Way as With that disclosed in Fig. 1.

In the use of the device, the leaves are carried by the element Dl andthe binder post members E and F telescoped together to the properdegree, depending on the amount of leaves held by said element. Invarying the effective length of the telescoping members E and F, theeffective length of the 'element D, that is the length of the chordjoining the ends of said element is also varied, but the effectivelength of the element D which is necessarily different for everyadjustmentL of the members E and F does not vary when the covers of thedevice are opened or closed. When it is desired to add or remo-ve anyleaves, the coverl is opened and the end adjacent the notches al madefree by applying there- A resilient member to a slight upward pressure.After the addition or removal of leaves, the telescoping members E and Fare respectively Withdrawn or contracted, as found necessary, and thenotch cl again caused to engage in the Wall of the opening c.

l/'Vhile in the embodiments of the invention herein disclosed theelement D is primarily designed to hold the leaves, it Will beappreciated that, if desired, this element may be dispensed with and theleaves directly held by the binder post elements. In this event,vvhen itis desired to add or remove leaves, the binder post member F must beentirely Withdrawn from the tubular member E. However, if the leaves areformed With slotted openings a complete separation of thebinder postelements is not necessary, but a mere extension of said members wouldsuftice to permit the addition or removalv of such leaves. Hence, itWill be appreciated that the present invention contemplates the use ofthe binder post Velements vwith or Withoutthe semicircular leaf-holdingelement. I.

lVhile- I have shown and described the preferred embodiments of myinvention, it will be understood that I do not Wish to be limited to thespecific construction herein set forth, since various changes thereinmay.v

be resorted to Without departing from the spirit of the invention.

`What I claim is 1. A loose leaf binder comprising a pair of telescopicmembers having interengaging means and a resilient element connectedWith said members adjacent their remote ends.

2.. A loose leaf binder comprising a pair of telescopic members havinginterengaging means, and a resilient element adapted to hold the leavesconnected- With said mem'- -bers adjacent their remote endsand acting tourge them apart.

3. A loose leaf binder comprising a binder post and a substantiallysemi-circular element for holding the leaves, one end of thesemifcircular element having a quickly detachable connection with thebinder post.

4:. A loose leaf binder comprising a pair of adjustable telescopicmembers, one being tubular and formed with a longitudinal series vofopenings in its side, and the other having a pair of spring fingersformed at their free ends with a catch projection adapted to enter anopening in the first member to lock the member against separation, thecatch projections being beveled on their under side to freely ridethrough the tubular member, and beveled at their sides so that byslightly rotating the spring iinger carrying member the catch projectionWill be released from the opening.

5. A loose leaf binder comprising a pair of members adapted for'telescopic connection with each other and an extension memed to receivetherein one of Jshe pair of her adapted to simultaneously telescope withmembers, and the spring fingers adapted to the pair of members, saidextension mementer the other of the pair of members. l0 ber having atubular portion provided with In Witness Wheleo'f, I have hereuntoopenings in its side and a pair of spring {in- Slgned my name.

gers formed at their free ends with a catch projection, the tubularportion being adapth HENRY STANLEY HORN.

